135388591680 has 56 divisors (see below), whose sum is σ = 429858781632. Its totient is φ = 36103624192.

The previous prime is 135388591673. The next prime is 135388591697. The reversal of 135388591680 is 86195883531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 135388591680.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70513932 + ... + 70515851.

It is an arithmetic number, because the mean of its divisors is an integer number (7676049672).

Almost surely, 2^135388591680 is an apocalyptic number.

135388591680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135388591680 is an abundant number, since it is smaller than the sum of its proper divisors (294470189952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135388591680 is a wasteful number, since it uses less digits than its factorization.

135388591680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141029803 (or 141029793 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 135388591680 in words is "one hundred thirty-five billion, three hundred eighty-eight million, five hundred ninety-one thousand, six hundred eighty".